3659402 has 4 divisors (see below), whose sum is σ = 5489106. Its totient is φ = 1829700.

The previous prime is 3659401. The next prime is 3659441. The reversal of 3659402 is 2049563.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2049563 = 53 ⋅38671.

It can be written as a sum of positive squares in only one way, i.e., 3575881 + 83521 = 1891^2 + 289^2 .

It is not an unprimeable number, because it can be changed into a prime (3659401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 914849 + ... + 914852.

Almost surely, 2^3659402 is an apocalyptic number.

3659402 is a deficient number, since it is larger than the sum of its proper divisors (1829704).

3659402 is a wasteful number, since it uses less digits than its factorization.

3659402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1829703.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 3659402 is about 1912.9563507827. The cubic root of 3659402 is about 154.1002607925.

The spelling of 3659402 in words is "three million, six hundred fifty-nine thousand, four hundred two".